package geek;

/**
 * @author sam
 * 2021/10/20 22:42
 * @description
 * @editor
 * @description
 *
 *  Three Sum
 */
public class Lesson16 {

    /*
    for 暴力  O(N3)
     */


    /*
    c=-（a+b）=> set  O(N2)
     */

    /*
    sort find
     */
}
